The short answer
Removing both ovaries and fallopian tubes reduces ovarian and tubal cancer risk by roughly 90% in people with a high-risk inherited variant. It is recommended so consistently because no effective ovarian cancer screening exists. The cost is immediate surgical menopause, and the timing question is genuinely hard.
Lifetime ovarian cancer risk is about 39-58% with a BRCA1 variant and 13-29% with BRCA2, against about 1.1% in the general population.
Risk-reducing salpingo-oophorectomy lowers ovarian and fallopian tube cancer risk by roughly 90%; a small risk of primary peritoneal cancer remains.
It is recommended so consistently because there is no effective ovarian cancer screening — transvaginal ultrasound and CA-125 have not been shown to detect it early enough.
Guidelines commonly suggest age 35 to 40 for BRCA1 and 40 to 45 for BRCA2, after childbearing is complete.
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The full explanation.
What the surgery is
Risk-reducing salpingo-oophorectomy removes both ovaries and both fallopian tubes. It is usually done laparoscopically, through small cuts. The tubes come out because most high-grade ovarian cancers are now thought to start there rather than in the ovary itself.
The numbers
- Lifetime ovarian cancer risk is about 39% to 58% with a BRCA1 variant and 13% to 29% with BRCA2. In the general population it is about 1.1%.
- This surgery cuts ovarian and fallopian tube cancer risk by roughly 90%.
- A small risk of primary peritoneal cancer stays behind, because the lining of the abdomen cannot be removed.
- Does the surgery also lower breast cancer risk? That is unsettled. Some studies have found a drop. Others have not.
There is a simple reason it is recommended so consistently, despite what it costs. There is no effective screening test for ovarian cancer. Transvaginal ultrasound and CA-125 have not been shown to find it early enough to save lives. That is the sharpest difference between this decision and the preventive mastectomy decision, where surveillance is a real alternative.
The timing question
Guidelines commonly suggest age 35 to 40 for BRCA1 and 40 to 45 for BRCA2, once childbearing is complete. The gap is there because ovarian cancer tends to come later in BRCA2 carriers.
Timing is the hardest part of this decision. The risk you are cutting rises with age. The cost of surgical menopause falls with age. So earlier surgery prevents more cancer, at the price of more years without ovarian hormones. Later surgery does the reverse. Family history often shifts the target, above all how old your relatives were at diagnosis.
One approach under study is to remove the tubes first and the ovaries later. It is not yet standard care. A clinical trial is one route to it.
Surgical menopause is the main cost
If you have not yet gone through menopause, this surgery brings it on at once rather than over years. That matters:
- Hot flashes and night sweats — reported by roughly 41% to 61% of women afterwards
- Sleep disruption, mood changes, difficulty concentrating
- Vaginal dryness, and changes in sexual desire and comfort
- Loss of bone density over time
- Higher cardiovascular risk when surgery happens well before natural menopause
- Permanent loss of fertility
Hormone therapy until around the usual age of natural menopause is often offered. It can ease several of these effects. Whether it suits you depends a lot on whether you have had breast cancer, and on the type. Have that conversation before surgery, not after.
Two things worth knowing beforehand
The pathology is detailed. The tubes and ovaries are cut into fine sections and examined closely. A small number of people turn out to have an early cancer, or a precancerous change, that no scan had picked up. Ask in advance what happens if that occurs, so it is not a shock.
Your uterus is a separate question. This operation does not include hysterectomy. Some people have reasons to consider it at the same time. Many do not. Ask why it is, or is not, being proposed for you.
This is a decision, not an instruction
The risk reduction is large and well established. NCI's genetics summary says risk-reducing salpingo-oophorectomy has been shown to improve overall survival in people carrying a BRCA1 or BRCA2 pathogenic variant, without putting a figure on it. The costs are just as real, and they land in daily life rather than on a chart.
Some people decide quickly. That is common if you are near the recommended age range, have finished having children, or have watched ovarian cancer in your family. Others take much longer, especially if they are younger, still deciding about children, or dreading menopause. Taking longer is a legitimate choice. Just keep the decision open, and set a date to revisit it, so it does not quietly drop off the list.
Sources
- NCI — Ovarian, Fallopian Tube, and Primary Peritoneal Cancer Prevention (PDQ®)
- NCI — Surgery to Reduce the Risk of Breast Cancer
- NCI — Genetics of Breast and Gynecologic Cancers (PDQ®), Health Professional Version
- NCI — Genetic Testing for Inherited Cancer Susceptibility Syndromes
- Management of ovarian cancer risk in women with BRCA1/2 pathogenic variants, CMAJ 2019 (PMC6690830)
Words to know
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Common questions
Why remove the fallopian tubes as well as the ovaries?
Most high-grade ovarian cancers are now thought to begin in the fallopian tube rather than the ovary itself. Removing both is why the operation is called salpingo-oophorectomy, and it is why the tubes are examined in fine detail by the pathologist afterwards.
Can I just be screened instead?
There is no effective screening test for ovarian cancer. Transvaginal ultrasound and CA-125 blood testing have not been shown to find it early enough to save lives. That absence is the single biggest reason this surgery is recommended as consistently as it is, in contrast to preventive mastectomy where surveillance is a genuine alternative.
Can I take hormone therapy afterwards?
Often yes, typically until around the usual age of natural menopause, and it can reduce several of the effects of early surgical menopause. Whether it is right for you depends heavily on whether you have had breast cancer and on the type. Raise it before surgery so the plan is ready when you wake up.
What about removing just the tubes first?
Removing the fallopian tubes first and the ovaries later is being actively studied as a way to delay surgical menopause. It is not yet standard care, and joining a clinical trial is one way people access that approach. Ask whether a trial is open near you.
Does this surgery lower my breast cancer risk too?
The evidence is genuinely mixed. Some studies have suggested a reduction in breast cancer risk after this surgery; others have not found one. It is reasonable to ask your team what they think the current evidence supports for someone with your specific variant and age.
Questions to ask your doctor
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Written by: Cancer ExplainedSources last checked: 2026-08-13 what this meansLast updated: 2026-08-18Next planned review: 2027-07-30
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How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
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